baber/WOPTO huggingface dataset:
Patent CA-2330037-A1 (CA)
Title: A left-hand circular polarized antenna for use with gps systems
Inventor: HERRING RUSSELL M
IPC: H01Q21/26
Filed: 1999-04-26
Abstract: An antenna system, comprising a left-hand circular polarized antenna (50), i s disclosed for use in receiving signals from a GPS location satellite (10) which are originally transmitted as RHCP signals. Reception occurs after the  right-hand circular polarized signal is reflected, or bounces off of, a surface one or more times. The number of reflections must be an odd number. The left-hand circular polarized antenna (50) may be mounted underneath a vehicle (70) or a building overhang (300). The method of the invention comprises the steps of transmitting a righ-hand circular polarized signal an d receiving the signal using a left-hand circular polarized antenna (50) place d in a location where the right-hand circular polarized signal must be reflect ed by an odd number of surfaces before reception.
Patent CA-2330164-A1 (CA)
Title: Total electrical transient eliminator
Inventor: PENNINGTON DONALD G
IPC: H02H9/00
Filed: 2001-01-02
Abstract: An apparatus and method for attenuating high frequency transients on AC power lines from damaging sensitive electrical and electronic circuits in an electrical load coupled to the AC power lines is pro-vided. The AC power line has an earth ground and the electrical load has an electrical load ground. A con-tinuous attenuator circuit is used for attenuating high frequency transients electrically coupled between the earth ground and the electrical load ground. The continuous attenuator circuit includes a plurality of toroid cores and a single continuous strand of wire being wound individually and sequentially a number of turns around each of the plurality of toroid cores.
Patent CA-2330807-A1 (CA)
Title: Use of metalloprotinease inhibitors for inducing and/or stimulating growth of hair or hairs and/or for slowing down their loss
Inventor: JARROUSSE FRANCOISE
IPC: A61Q5/00
Filed: 1999-05-11
Abstract: A method for inducing and/or stimulating the growth of hair and/or slowing down hair loss comprising administering an effective amount of at least one metalloprotease inhibitor or any functional biological equivalent thereof and an acceptable carrier therefor.
Patent CA-2331020-A1 (CA)
Title: Cardiac activity algorithm activation of a neurostimulator
Inventor: ADKINS ALAN
IPC: A61N1/36
Filed: 1999-04-30
Abstract: Cardiac activity indicative of an imminent epileptic seizure is sensed (45),  and timed (65) to deliver a status signal to a logic and control circuit (35 ) which contains a microprocessor (36) and a random access memory (66) to analyze the input data, and set the stimulus parameters for delivery by the output section (42) through electrodes (43) to treat the imminent epilepsy.< /SDOAB>
Patent CA-2331675-A1 (CA)
Title: Method and apparatus for obtaining initial carrier and symbol phase estimates for use in synchronizing transmitted data
Inventor: SAYEGH SOHEIL I
IPC: H04L27/233
Filed: 1999-05-13
Abstract: A method and apparatus for determining initial carrier and symbol phase estimates in a burst mode digital communication system are described. In-phase and quadrature sample of a BPSK preamble are sampled to obtain correlation values (YE, YO, XE, XO). Next, sum (7, 9, 10) and differences (8, 11, 12) of the correlation values are obtained. Then the initial carrier phase estimate (TAUHAT) and the initial symbol phase estimate (TAUHAT) are obtained through application of an algorithm. The apparatus that implements the method consists of adders (9, 10, 11, 12, 16, 17), inverters (7, 8, 15), arc tangent look-up tables (13, 14) and divide by 2 logic units (18, 19).
Patent CA-2331862-A1 (CA)
Title: Christmas light string
Inventor: GIBBONEY JAMES W JR
IPC: F21S4/00
Filed: 1999-05-07
Abstract: An electrical circuit for use with plural, low voltage loads such as a string of Christmas lights is disclosed comprising groups (36) of lights (34) placed electrically in a series circuit but the lights within each group are in parallel, preferably with a semiconductor device (38) in parallel with each group to limit current and voltage in the group. By suitable choice of bulb, group size and number of groups, a light string can be fashioned that uses about one third the power with much less heat production and without loss of brightness. The semiconductor device (38) can consist essentially of diodes such as two silica diodes (40) on either side of a Zener diode (42), or a custom bipolar device.
Patent CA-2333555-A1 (CA)
Title: Controlled release preparations having multi-layer structure
Inventor: SANO AKIHIKO
IPC: A61K9/24
Filed: 1999-05-19
Abstract: The present invention is directed to preparations whereby two or more drugs can be released separately at appropriate speeds depending on the disease or the release behaviors of one or more drugs. The preparations precisely control the release of the drugs. The preparations consist of an outer layer wherein a water-soluble drug is dispersed in a carrier made of a biologically non-degradable and hydrophobic polymer material, and one or more inner layers wherein a water-soluble drug, differing in kind or concentration from the one contained in the outer layer, is dispersed in a carrier made of a biologically non-degradable and hydrophobic polymer material, and in which the outer and inner layers are concentrically located in diametral direction of rod-like preparations and both or one of the ends in the axial direction are opened so as to directly come into contact with the environment.
Patent CA-2334734-A1 (CA)
Title: Polymeric materials and process for producing same
Inventor: VAYKHANSKY LEV
IPC: H05K3/02
Filed: 1999-06-28
Abstract: An improved process for producing a consolidated polymeric monolith from an assembly (10) of thermoplastic polymer. The assembly (10) is placed under pressure to fill a majority of the voids thereof by mechanical deformation of the fibers, and heated to a temperature too low to melt the fibers at the deformation pressure but sufficiently high to at least partly melt the fibers at a lower transition pressure. The asembly (10) is compressed in a vacuum press mold (12), between a piston (14) and a matrix (16) and during compression, vacuum is applied to ports (18a, 18b, 18c, and 18d) in matrix (16). While maintaining the assembly (10) at this temperature, the pressure is reduced to the transition pressure long enough for partial melting of the fibers to fill the rest of the voids, and then is increased to a consolidation pressure at least as high as the deformation pressure. The process allows accurate control of thermal expansion coefficients of the product.
Patent CA-2336467-A1 (CA)
Title: Method of making optical replicas by stamping in photoresist and replicas formed thereby
Inventor: HARDEN BRIAN
IPC: G03F7/00
Filed: 1999-06-30
Abstract: Optical structures are replicated in photoresist on a substrate using a stamp.  The transfer of the pattern into the liquid photoresist and the provision on the substrate can be achieved using manual pressures.  Various techniques may be used to remove air from the liquid photoresist. The stamp is removed once the liquid photoresist is fully solidified. These structures in solidified photoresist may serve as optical elements or may be accurately transferred into the substrate. The stamp may be for an entire wafer.
Patent CA-2337382-A1 (CA)
Title: Process for the preparation of an indole derivative
Inventor: STRACHAN JOHN BRYCE
IPC: C07D209/42
Filed: 1999-07-13
Abstract: A process for the preparation of methyl 2-(3-chloropropoxy)-idole-3-carboxylate, which comprises reacting 3-chloro-3-carboxylate indole compound with 3-chloropropanol in the presence of an acid having a pKa of from 0 to 2.
Patent CA-2340173-A1 (CA)
Title: Biomarqueurs volatils destines a l'analyse de troubles hepatiques
Inventor: SEHNERT SHELLEY
IPC: G01N33/497
Filed: 1999-08-27
Abstract: La présente invention concerne des systèmes et méthodes d'essai permettant de détecter un trouble hépatique chez un mammalien. Les systèmes et méthodes d'essai sont spécialement conçus pour être appliqués à un primate. De préférence, la méthode selon l'invention consiste à classer par stades le trouble hépatique chez un patient humain. Dans les systèmes et procédés d'essai, on contrôle des constituants de gaz de la respiration pour détecter et/ou déterminer l'état du trouble.
Patent CA-2342155-A1 (CA)
Title: Linear traveling wave tube amplifier utilizing input drive limiter for optimization
Inventor: KIRKMAN GEORGE F
IPC: H03F1/52
Filed: 2000-04-19
Abstract: A linearized traveling wave tube amplifier with average power limiter is disclosed. The device includes an average power limiter for the purpose of preventing a TWT from operating at output powers higher than the required operating point.  The device includes a detector for dynamically producing a detector signal proportional to an average power of an input signal and substantially independent from a peak power of the input signal and an attenuator in communication with the detector and the amplifier for dynamically attenuating the input signal according to the detector signal. The limiter allows the TWTs to be optimized for performance at the required operating point resulting in higher efficiency, and eliminates the need to size the amplifier for a power level any larger than the required operating point which reduces the cost and complexity of the system. The limiter protects the TWT while not degrading the linear performance of the TWT by limiting the average power while allowing peak powers of short duration to pass with low loss.
Patent CA-2342900-A1 (CA)
Inventor: SAF FREDRIK
IPC: E21B19/084
Filed: 1999-08-18
Abstract: Rock drilling device comprising a feed beam (1) and a rock drilling machine (2) movable along the feed beam. The rock drilling machine is fed along the feed beam (1) by means of a feed line (7) which is routed over a sheave (6) arranged at the movable end (5) of a pressure medium cylinder (3). A further line (8) is arranged between two points (9, 10) which are fixed relative to the movable end (5) of the pressure medium cylinder (3). The further line (8) is connected with a measuring device (11) which is fixedly arranged on the feed beam (1) for measuring the displacement of the rock drilling machine (2) along the feed beam.
Patent CA-2343022-A1 (CA)
Title: Vinyl monomer polymerization inhibition using hindered hydroxylamines
Inventor: ROOF GLENN L
IPC: C07C21/06
Filed: 1999-09-08
Abstract: It has been discovered that the polymerization of vinyl aromatic compounds, such as styrene, may be inhibited by the addition of a composition that contains a hindered hydroxylamine, and, optionally, a synergist together with the hindered hydroxylamine. In one embodiment of the invention, the hindered N,N-disubstituted hydroxylamine has the formula: [(R1R2R3)C]2N-OH where R1, R2, and R3 are independently selected from the group consisting of hydrogen, straight, branched or cyclic alkyl, aryl, aralkyl, and alkaryl moieties; where no more than two of R1, R2, and R3 on each C can be hydrogen at a time; where one or more of R1, R2, and R3 on one C may be joined to a R1, R2, and R3 on the other C to form a cyclic moiety selected from the group consisting of alkylene, and aralkylene moieties; where any two of the R1, R2, and R3 on any one C may be joined together to form a cycloalkyl; where any of the above definitions of R1, R2, and R3 may contain one or more heteroatoms selected from the group consisting of N, O and S; and where the total number of carbon atoms in the hindered N,N-disubstituted hydroxylamine ranges from 6 to 70.  Optional synergists may include alkyl-substituted hydroxyarenes such as 2,5-di-tert-butylhydroquinone, and hydrogen transfer agents such as 1,2,3,4-tetrahydronaphthalene; and the like, and mixtures thereof.
Patent CA-2344535-A1 (CA)
Inventor: CAPECI SCOTT WILLIAM
IPC: C11D10/02
Filed: 1999-09-24
Abstract: A detergent composition which has improved solubility or dissolution in laundering solutions, especially in solutions kept at cold temperatures (i.e., less than about 30 ~C), is provided. The granular detergent composition is aesthetically pleasing to consumers and has improved flowability. The granular detergent composition has a homogeneity number of greater than 1 wherein the homogeneity number is defined by the equation HN = Xbulkr/Xpart. A process for producing the detergent is also provided.
Patent CA-2344614-A1 (CA)
Inventor: BLANDING DOUGLAS
IPC: H02G7/12
Filed: 2001-04-19
Abstract: A spacer device for maintaining separation of a plurality of utility lines.  The spacer is generally comprised of a series of non-conductive, insulator members extending in longitudinally spaced relation to one another along a common longitudinal axis, and being interconnected to one another by an elongated rod which also extends along the common longitudinal axis. The insulator members each include respective conductor engaging portions, body portions, and a passageway extending longitudinally therethrough. The rod engages and extends through the passageways of each insulator member. The conductor engaging portions each include bar members that have a v-shaped notch removed therefrom to facilitate stable and secure engagement of the insulator members on top the conductors.
Patent CA-2345402-A1 (CA)
Title: Dual level tilting tray package sorting apparatus
Inventor: BONNET HENRI
IPC: B65G47/38
Filed: 1994-11-09
Abstract: An automatic system (10) for sorting items, such as small parcels, into groups bound for different geographical locations is described. The system uses tilting trays (60, 90) arranged at multiple levels, with all the trays being mounted on carriages (14) travelling on a single monorail (12). The trays are tilted at the proper output chutes by cam roller mechanisms which are appropriately inserted into the path of cams on the trays under the coordination of a digital controller. A simple drive mechanism (16) moves the carriages (14) along the monorail (12) using a drive roller which presses against the carriages. The carriages may be linked by a pliable linkage assembly (150) that does not include mechanical hinges or like mechanisms. The system is easy to repair and operates at low noise levels.
Patent CA-2349001-A1 (CA)
Inventor: ANGELL ROBERT C JR
IPC: G07F17/32
Filed: 1999-10-01
Abstract: Cette invention se rapporte à un procédé et à un système de jeu, dans lequel plusieurs joueurs se connectent chacun à un ordinateur central qui permet aux joueurs de participer conjointement aux mêmes jeux de hasard. Un mode de réalisation de cette invention prévoit un procédé de jeu informatisé qui consiste à connecter plusieurs joueurs à un ordinateur central situé à distance des joueurs. Chaque joueur participe conjointement aux mêmes jeux de hasard en y jouant à tour de rôle.
Patent CA-2352507-A1 (CA)
Title: Process for the preparation of 2,2,6,6-tetraalkylpiperidin-1-oxyl via 1,2,3,6-tetrahydro-2,2,6,6-tetraalkylpyridine
Inventor: CASAGRANDE BRUNO
IPC: C07D211/70
Filed: 2000-01-31
Abstract: This invention relates to a process for the preparation of a compound of formula (I), wherein R1, R2, R3 and R4 are each independently of one another  C1-C4alkyl; R5 is H or CH3; and R6 is H or C1-C18alkyl; from a compound of formula II, which comprises dehydrating the compound of formula (II) either a1) in the form of an aqueous solution or suspension, or a2) in the form of an atomised melt together with water vapour at a temperature of above 150~ C on  a metal oxide or semimetal oxide catalyst. This invention also relates to a process, in which the compounds of formula I are hydrated and then oxidised to the corresponding N-oxyls.
Patent CA-2352678-A1 (CA)
Inventor: JAMES BRIAN G
IPC: G06T5/00
Filed: 2001-07-05
Abstract: An image, such as an X-ray, is enhanced through local enhancement of the contrast of the image's point intensities. A first, low frequency upper curve is fitted to the local maximums and a second independent, low frequency lower curve is fit to the local minimums, forming a fairway with the raw image data residing therebetween. A local range, between the fairway local maximum intensity and fairway local minimum intensity, is extracted for each point. Each point is scaled by the ratio between the fairway's local range and the dynamic range for the image so as to maximize its variation in intensity between it and its neighboring points. Preferably an iterative moving average technique is used to establish the fairway curves. In a preferred embodiment, outlier points scaled outside the fairway are temporarily stored at higher precision than the dynamic range. A histogram of the fairway corrected data is formed, having a range greater than the dynamic range and encompassing substantially all the outlier points. Only the most deviant of the outliers are trimmed in this histogram correction and the resulting range limits for the entire image are scaled to the dynamic range.
Patent CA-2356270-A1 (CA)
Title: Automated centrifuge loading device
Inventor: MILLER RODNEY D
IPC: G01N35/00
Filed: 1998-12-22
Abstract: A method and apparatus for an automated device for loading a centrifuge wher e tubes are presented to the centrifuge via an automated routing system. The device includes a stating area for tube adaptors, a dual function tool havin g a tube gripper which routes tubes between a transport device and centrifuge adaptors, and an adaptor gripper which transports the tube adaptors to and from the centrifuge.
Patent CA-2356937-A1 (CA)
Inventor: ROIZMAN BERNARD
IPC: A61K35/76
Filed: 1998-12-31
Abstract: Recombinant herpes simplex viruses comprising DNA encoding cytokines and methods for treating neoplastic diseases using the inventive recombinant viruses are disclosed.
Patent CA-2358515-A1 (CA)
Title: Portable cart
Inventor: DARLING CHARLES W II
IPC: B62B5/00
Filed: 2000-01-07
Abstract: A portable cart, for use in camping, hunting and other outdoors activities carries canoes, small boats, game, injured parties or hauled cargo by hand. The portable cart can be converted to a canoe or boat cart which can be folded down and transported within the canoe or boat, or to a game cart for transporting game over long, rough terrain, or to a cargo hauling gear cart, all of which can be broken down into a carrying position, by hand or by back. The portable cart can be carried by hand or as a backpack over rough terrain. Its width can be varied to accommodate watercraft of varying widths. The cart has optional removable clamps for clamping a conventional transportable carrier, such as a stretcher or stokes-type rescue carrier bed, thereto. Another optional bicycle pull clamp includes an anti-tipping attachment resisting centrifugal force urging said cart to tip over during a directional turn of the cart-hauling bicycle. It is collapsible, so that it can be disassembled and carried in a canoe or small boat, and then reassembled at another destination along the canoe or boat's journey.
Patent CA-2361838-A1 (CA)
Inventor: PASTERNACK GARY R
IPC: A61K48/00
Filed: 2000-02-03
Abstract: Methods to treat existing cancer or prevent cancer formation by restoration of pp32 function in cells lacking normal pp32 activity or expression are provided. The methods provide for restoration of pp32 either through transfection of cells with DNA expressing normal pp32, administration of an inducer of pp32 activity and/or inhibition of a nuclear phosphatase that is inhibited by pp32.
Patent CA-2362884-A1 (CA)
Inventor: BOULET STEVE
IPC: A22C29/00
Filed: 2001-11-13
Abstract: Cette invention traite d'un procédé et d'une méthode qui utilise un impact mécanique pour extraire les gonades d'un oursin.
Patent CA-2364899-A1 (CA)
Title: Polycyclic 2-amino-dihydrothiazole systems, method for the production thereof and their utilization as medicament
Inventor: JAHNE GERHARD
IPC: C07D277/84
Filed: 2000-02-05
Abstract: The invention relates to polycyclic 2-amino-dihydrothiazole systems, their physiologically acceptable salts and physiologically functional derivatives.  The invention describes compounds of formula (I), wherein the radicals have the cited meaning, their physiologically acceptable salts and a method for the production thereof. Said compounds are suitable, for example, as anoretics.
Patent CA-2367046-A1 (CA)
Inventor: GOTTSMAN EDWARD J
IPC: G06F17/30
Filed: 2000-03-08
Abstract: The present invention is a research tool consisting of a computerized system and method for processing and displaying information. The system can be applied to the content of any scientific, technical, academic, or professional publishing sub-discipline in which each content item can be classified under a collection of principles ("classification categories") of the discipline, for example: law (6), immigration law (29), science, polymer chemistry, medicine, and economics (7). The present invention employs as appropriate for the sub-discipline, the traditional content and system tools of computerized research systems: file-building software, file-processing software (30), including full-text searching and hypertext links (11), a user interface, and content types such as tables of contents, index terms, abstracts, journal articles (7), parts and subparts of books, research notes, and reports, drawings, cases (6), statutes, and the like. The content of the computerized system records the knowledge and research of the sub-discipline. Each classification category is an expression of an authoritative definition, principle, or relevant fact in the sub-discipline.
Patent CA-2368066-A1 (CA)
Title: Ball mill
Inventor: FONTANILLE DANIEL
IPC: B02C17/18
Filed: 2000-05-04
Abstract: The ball mill is of the type including:a rotary drum (11, 12, 13) having a horizontal axis (XX') and each end of which is supported by a journal (14, 15) which terminates it and through which passes an axial tube (41) around which it delimits an annular duct (35), a vertical pipe (6) discharging in the vicinity of the journal at the level of a guide member (31) for directing material to be pulverized from the pipe towards the drum, and an outlet duct (36) communicating with the annular duct for ejecting from the drum the mixture consisting of the gas and the pulverized material. Each journal contains a rigid helicoidal Archimedes screw structure (32) fixed to it and turning with it about the tube, when the drum rotates, which tube is a rigid immobile gas injector tube.
Patent CA-2368153-A1 (CA)
Title: Modular tool support element in sheet metal bending brakes
Inventor: TARASCONI GIANLUCA
IPC: B21D37/14
Filed: 2000-03-31
Abstract: In sheet metal bending brakes a modular tool support element comprising an intermediary (6) fixed to the respective toolplate (2) and having a lower channel for receiving the tool shank provided with a groove along its entire length, means for supporting the shank in said channel while leaving it free to slide along the channel, and means for clamping the shank in said channel;  the modular element comprises at least one lower channel a lateral wall of which is a movable jaw (81) rotatable about a fixed shaft rigid with the body of the intermediary, there being provided means for causing said jaw to rotate in the tool clamping direction, and movable abutments on said jaw (81) which are able to be positioned in front of or respectively moved away from said rotation-causing means.